Inventor

HAEHNKE MANFRED

DE23 patents

⚠️ This page may combine multiple inventors who share the name “HAEHNKE MANFRED”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HAEHNKE MANFRED

HOECHST AG

Process for spin-dyeing of acid-modified polymers of acrylonitrile by the wet-spinning procedure using quaternary ammonium or cyclammonium dyestuffs of low M value and high cation weight having two or three said ammonium or cyclammonium groups

Mixtures of water-soluble fiber-reactive dyes and use thereof for dyeing: dioxazine and disazo dyes

Process for spin-dyeing of acid-modified polymers of copolymers of acrylonitrile using rapid-fixing di-quaternary cationic dyes

Process for dyeing, in the gel state, fiber material composed of wet spun acrylonitrile polymers using dyes with two basic groups

Process for continuously dyeing in the gel state fiber material of acrylonitrile polymers spun from organic solvents with carbinol- or anhydro base of basic dye

Quaternary and basic azamethine compounds and their use as colorants

Dye composition containing a mixture of water-soluble fiber-reactive dyes and method of dyeing with said dye composition

Process for level exhaust of cellulose fibers with reactive dyes: addition of fixing alkali according to a parabolic time function

Multi-component mixtures of blue disperse azo dyes for the dyeing of synthetic fibers

Dyeing formulations of mixtures of red disperse dyes for the washfast dyeing of polyester fibers or mixtures thereof with cellulose fibers: benzo-di-furanone and azo dyes

Mixtures of blue disperse azo dyestuffs for dyeing synthetic fibers

Storable formulations of cationic dyes with oxidizing agent as stabilizer

Pad-dyeing of cellulose fibers with sulfur black dyes: mixture of dithionite and glucose reducing sugar as reducing agent in aqueous alkaline dye bath

CASSELLA FARBWERKE MAINKUR AG

Blue azo dyestuff mixture for strong blue color on hydrophobic fibers

Mixtures of monoazo dyestuffs

Mixture of yellow disperse dyestuffs containing pyridone disazo dye

Red mono-azo water-soluble dye containing cyano, amide and amino substituents

Dyestuff mixtures, process for their preparation and process for dyeing and printing hydrophobic fiber materials

Water-insoluble naphthol monoazo dyestuff

Mixtures of monoazo dyes containing halogen and cyano substituents

HOECHST CO AMERICAN

Yellow disperse dyestuff mixtures and dyeing process

BAYER AG

Mixtures of monoazo dyestuffs

BUEHLER ULRICH

Process for coloring cellulose on polyester with water-insoluble red mono-azo dyes